Tested using FX Cont trunk build 130 (Sep 9, 2008 4:49:22 PM) on NB6.5:
Product Version: NetBeans IDE Dev (Build 200809081401)
Java: 1.6.0_10-rc; Java HotSpot(TM) Client VM 11.0-b14
System: Windows Vista version 6.0 running on x86; Cp1252; en_US (nb)

Weather app shows editor errors:

1. WeatherModel.fx
a. public static should change to public-read
b. attribute should change to var
c. private function (line 65), remove private
d. cannot assign to parameter dir

2. Weather.fx
a. private should be removed before functions and attributes (vars)
b. attribute should change to var
c. line 277 (override needed)
d. FontStyle no longer exists, need stylesheets
e. transform => transforms
f. CurveTo is missing an import -> QuadCurveTo?  (controlX, controlY, x, y)
g. 435: HorizontalAlignment => textAlignment
h. loose expressions (Canvas at bottom of file
i. 110: weatherModel already defined.

3. TransformHelper
a. attribute = var

4. WeatherApp.fx
a. Group { transform:  has changed to transforms
b. public function run() needs the override keyword (lines 82 & 86)
c. weatherModel has script only (default) access in weatherfx.Weather

5. LoadingScreen
a. private should be removed
b. add overrides
c. CurveTo -> QuadCurveTo
d. transform -> transforms
e. FontStyle no longer avaialable.

6. CachedImage
a. private static attribute -> var
b. remove static from function

7. AnimatedImage
a. private attribute => var
b. remove static from function
c. CachedImage import missing